Library

Training content, documentation, technical papers, case studies, and recorded office hours

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Training content and documentation

DFIT Interpretation Course, SAGA Wisdom

This course covers the DFIT interpretation procedure from the paper URTeC-2019-123. The procedure was developed as part of a collaborative industry study sponsored by a group of six operators and one service company. It is the latest course offered by SAGA Wisdom,available to SAGA Wisdom subscribers.

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DFIT Permeability Estimation

Best Practices in Interpretation of DFIT Tests for Shmin, Permeability, and Pore Pressure

DFIT interpretation has been a theme of the work that we’ve done within ResFrac. Our collaborative 2018 Industry Study, which culminated in one of the ‘Best of URTeC’ papers in 2019, developed significant new advances in interpretation. I’ve recorded a roughly two-hour talk summarizing the findings from that study, along with related work done at UT Austin on this topic from 2013-2015. The talk covers: (1) what is a DFIT and why they are performed, (2) problems with the often-used ‘tangent’ method of interpreting DFITs, (3) discussion of some of the new methods developed in the 2018 Industry Study, (4) a worked

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ResFrac Users Guide

If you are new to using ResFrac (or just want to brush up on your skills), start here! This video has everything you need to know about setting up and running simulations in ResFrac.

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Technical papers and case studies

Sealed Wellbore Pressure Monitoring (SWPM) and Calibrated Fracture Modeling: The Next Step in Unconventional Completions Optimization

Well Data Labs and ResFrac collaborated with Devon Energy is demonstrate an automated workflow for calibrating ResFrac models to Sealed Wellbore Pressure Monitoring (SWPM) data from HFTS 1 Phase 3 refrac project in the Eagle Ford. The workflow we followed was the same as that in our blog post tutorial on using Volume to First Responses (VFRs) from SWPM.

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Adding a fourth dimension: Optimizing for heat recovery

ResFrac lends itself particularly well to the optimization of hydraulically stimulated geothermal wells. ResFrac not only computes fracturing and reservoir flow simultaneously, but also calculates thermal stress changes and supercritical fluid properties. Fowler and McClure (2021) evaluate three geothermal designs: a closed-loop, a closed-loop with thermally conductive fractures, and an open-loop multi-lateral.

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Modeling unlocked 60% improvement in NPV

HFTS 2 is one of the highly measured hydraulic fracturing pads in the world. In 2021, the HFTS 2 consortia and ResFrac collaborated on a modeling study to incorporate all the advanced diagnostics in HFTS 2 into a single, comprehensive model. This model was then employed in an automated optimization workflow to assess opportunities to improve NPV by adjusting well spacing, proppant loading, fluid loading, cluster spacing, and landing zone. Pudugramam et al. presented the ResFrac model calibration and optimization in URTeC 3723620 in 2022, showing a 60% possible improvement in NPV by optimization of well placement and completion design.

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Office hours recordings

Dashboards and Visualization Techniques

For April Office Hours, Dave Ratcliff, ResFrac Director of User Success, presented on dashboards and visualization techniques. Dave discussed common methods of analyzing these simulations, including recommended line plots and 3D attributes. Listen in and potentially learn about a new output!

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